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This was an idea brought up by a friend.
Due to the CPU producing heat, one would think that it would be more energy-efficient to reuse that heat energy.
Through what method could heat from the CPU be converted into electrical energy, which goes back into the computer?
How much electricity could be produced, and would it be significant enough to go through the trouble of harnessing it?
Are you thinking of a perpetual machine? That's not possible. – Biswapriyo – 2017-08-25T03:52:29.390
@Biswa not a perpetual machine, but a contraption that greatly increases the energy efficiency. – George Tian – 2017-08-25T06:09:04.517
No, it won't. In general, waste heat is very darn difficult to get any usable energy out of. Although there may seem to be a lot of it, its temperature is usually not high enough above ambient to be useful. See "Carnot efficiency". And remember that in the calculation of Carnot efficiency you must use an absolute-zero-based temperature scale such as Kelvin or Rankine. – Jamie Hanrahan – 2017-08-25T22:20:27.520